ICD-10 Code: M33.29 – Polymyositis with other organ involvement
ICD-10 code M33.29 corresponds to Polymyositis with other organ involvement. This code is classified under the chapter M33 Dermatopolymyositis, which is part of the M30-M36: Systemic connective tissue disorders category.
The parent chapter is Diseases of the musculoskeletal system and connective tissue.